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All results from a given calculation for H2CNCN (cyanamide, methylene)

using model chemistry: QCISD(T)=FULL/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at QCISD(T)=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-186.640207
Energy at 298.15K 
HF Energy-185.816458
Nuclear repulsion energy92.298283
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD(T)=FULL/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3199 3199        
2 A' 3096 3096        
3 A' 2260 2260        
4 A' 1674 1674        
5 A' 1497 1497        
6 A' 1227 1227        
7 A' 942 942        
8 A' 625 625        
9 A' 253 253        
10 A" 1098 1098        
11 A" 780 780        
12 A" 377 377        

Unscaled Zero Point Vibrational Energy (zpe) 8512.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8512.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/daug-cc-pVTZ
ABC
2.12964 0.18158 0.16732

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.094 -1.545 0.000
N2 -0.628 -0.489 0.000
C3 0.000 0.706 0.000
N4 0.438 1.784 0.000
H5 -0.415 -2.499 0.000
H6 1.181 -1.528 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27932.25283.34631.08161.0870
N21.27931.34982.51022.02142.0861
C32.25281.34981.16333.23182.5268
N43.34632.51021.16334.36693.3938
H51.08162.02143.23184.36691.8686
H61.08702.08612.52683.39381.8686

picture of cyanamide, methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 117.911 N2 C1 H5 117.537
N2 C1 H6 123.463 N2 C3 N4 174.394
H5 C1 H6 119.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability